{"product_id":"rear-air-suspension-kit-for-1999-2018-chevrolet-gmc-1500-spelab","title":"Rear Air Suspension Kit for 1999-2018 Chevrolet\/GMC 1500 | SPELAB","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eStop the Squat. Turn Your Half-Ton into a Towing Powerhouse.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eYour 1999-2018 Chevrolet Silverado \u0026amp; GMC \u003cspan\u003eSierra \u003c\/span\u003e1500 is a legendary truck, but its factory leaf springs were built for a compromise between ride comfort and light hauling. When you load up the bed with heavy cargo or hitch up a travel trailer, the rear end sags. This terrifying \"truck squat\" causes your front tires to lose traction, your steering to become dangerously light, and your headlights to blind oncoming traffic. Worse yet, every bump in the road results in a bone-jarring bottom-out.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eLevel Your Load with SPELAB's 7,500-LB Heavy-Duty Air Suspension.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eEngineered for truck owners who demand more stability, this premium air helper spring kit acts as a muscular support system for your factory suspension. Fully adjustable from 0 to 150 PSI, these extreme-duty air bags effortlessly level up to 7,500 pounds of payload.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eBy restoring your Silverado's proper ride height, this kit eliminates trailer sway, body roll, and harsh bottoming out. Get your steering geometry back, protect your tires, and experience a smooth, confident towing experience—whether you are pulling a camper on the weekend or hauling supplies to the job site.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1999-2018 Chevrolet Silverado 1500\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1999-2018 GMC Sierra 1500\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Benefits\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eMassive 7,500 LBS Load-Leveling Capacity\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003eEngineered to support significantly more weight than standard 5,000-lb aftermarket kits.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003eEffortlessly levels heavy travel trailers, boat trailers, or fully loaded truck beds, restoring a safe and level stance to your half-ton truck.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eEliminates \"Truck Squat\" \u0026amp; Trailer Sway\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003eAutomatically adjusts your ride height to counteract heavy rear payloads.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003eKeeps your front tires firmly planted on the road for precise steering, safe braking distances, and proper headlight alignment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eExtreme-Duty 6mm Thick Rubber\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003eConstructed from multi-layer reinforced rubber boasting an impressive 5.9-6.0mm thickness.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003eProvides incredible resistance to road debris, abrasions, and leaks, ensuring long-lasting reliability in harsh towing environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eFully Adjustable Air Pressure (0-150 PSI)\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003eInflate when heavily loaded and deflate when riding empty.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003eGives you total control to fine-tune your suspension stiffness for a buttery-smooth ride, whether you are hauling a tractor or cruising to the grocery store.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eMaximum Air Volume for Comfort\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003eDesigned intentionally without an internal jounce bumper.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003eMaximizes the internal air volume of the bag, which creates a softer, more dynamic pneumatic cushion to absorb harsh road impacts and reduce driver fatigue.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eUltra-High Burst Pressure Safety\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003eWhile the maximum daily operating pressure is 150 PSI, these bags boast a laboratory-tested burst pressure of 435 PSI (3 MPa).\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003eGives you absolute peace of mind that your air bags won't blow out under sudden impacts or severe compression.\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; height: 274.313px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eMax Load Leveling Capacity\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003eUp to 7,500 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eOperating Pressure Range\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003e0 – 150 PSI (Do Not Exceed 150 PSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eTested Burst Pressure\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003e435 PSI (3 MPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eRubber Thickness\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003e6±1 mm (Extreme-Duty Multi-Layer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eDesign Height\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003e148±2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eMax Extension Height\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003e218±5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eMin Compression Height\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003e72±5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eInternal Jounce Bumper\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003eNone (Allows for maximum air volume)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.7138%; height: 19.5938px;\"\u003eBag Color\u003c\/td\u003e\n\u003ctd style=\"width: 59.9284%; height: 19.5938px;\"\u003e\n\u003cp\u003eBlack\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eIdeal Usage Scenarios\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eTravel Trailers \u0026amp; Boats:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eEliminates the aggressive rear-end sag caused by heavy tongue weights, stopping porpoising (bouncing) on the highway.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eContractors \u0026amp; Work Trucks:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eKeeps your truck level when the bed is loaded with heavy tools, lumber, or gravel, preventing premature factory leaf spring wear.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDaily Driving:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eProvides a smooth, comfortable ride for passengers. When empty, simply lower the pressure to 5 PSI to retain factory ride quality.\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---tab FAQ---\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eQ: Does this kit increase my Silverado's maximum towing capacity (GVWR)?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. Air suspension kits are designed to\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003elevel and support\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003ethe load, making it safer and more comfortable to carry. You should never exceed the factory-rated maximum Gross Vehicle Weight Rating (GVWR) or payload capacity set by Chevrolet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eQ: Do these bags have an internal jounce bumper?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. These air springs are intentionally designed without an internal jounce bumper. This allows for a larger internal air volume, which results in a smoother, less jarring ride quality when towing.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"ng-star-inserted\"\u003eNote: You must maintain a minimum of 5 PSI in the bags at all times to prevent them from bottoming out and tearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eQ: What is the maximum pressure I can run?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The recommended maximum operating pressure is 150 PSI. While these heavy-duty bags are tested to withstand a burst pressure of 435 PSI (3 MPa), you must strictly adhere to the 150 PSI limit for safe, daily operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eQ: Will this fit my GMC Sierra 1500?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. The 1999-2018 Chevy Silverado 1500 and GMC Sierra 1500 share the identical GMT800 chassis platform, meaning this kit will bolt up perfectly to either truck.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eQ: Will this make my truck ride stiff when the bed is empty?\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Not at all! The beauty of adjustable air springs is that you can deflate them to the minimum 5 PSI when you are not hauling. Your truck will ride smoothly on its factory suspension just like it did before the installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e","brand":"SPELAB","offers":[{"title":"1999-2006","offer_id":49196930990331,"sku":"SPBVY0001001","price":259.0,"currency_code":"USD","in_stock":true},{"title":"2007-2018","offer_id":49196931023099,"sku":"SPBVY0001002","price":259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/0609\/9556\/files\/01_BVY0001001.webp?v=1787139126","url":"https:\/\/www.spelabautoparts.com\/products\/rear-air-suspension-kit-for-1999-2018-chevrolet-gmc-1500-spelab","provider":"SPELAB","version":"1.0","type":"link"}